//
// Created by Administrator on 2025/4/15/周二.
//
#include "iostream"

using namespace std;


//发现是引用，转换为 int* const ref = &a;
void func(int &ref) {
    ref = 100;//ref是引用，转化成*ref = 100
}



int main() {
    int a = 10;
    //自动转换为 int* const ref = &a; 指针常量是指针指向不可改，也说明为什么引用不可更改
    int &ref = a;
    ref = 20; //内部发现ref是引用，自动帮我们转换为: *ref = 20;

    cout << "a:" << a << endl;
    cout << "ref:" << ref << endl;
    func(a);
    return 0;

}